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T: Fachverband Teilchenphysik

T 86: Neutrino Physics (Theory) 1 and Theoretical Astroparticle Physics and Cosmology 1

T 86.7: Talk

Thursday, March 24, 2022, 17:45–18:00, T-H17

Constraining Inflationary Dynamics with the SKA — Tanmoy Modak¹, Tilman Plehn¹, •Lennart Röver¹, and Björn Malte Schäfer² — ¹Institut für Theoretische Physik, Universität Heidelberg, Germany — ²Astronomisches Recheninstitut, Universität Heidelberg, Germany

The SKA allows to map the distribution of neutral hydrogen in the Universe over a vast redshift range. The three-dimensional 21cm power spectrum found through this map can be used to perform precision tests not only for several astrophysical phenomena but also for early Universe cosmology. Even considering only a small redshift range it allows to significantly improve current constraints on the Hubble slow-roll parameters when combined with the CMB anisotropies measurement of Planck.